Justified or jealous of pregnant friend?

can anyone help? my best friend of10 yrs has told me she's pregnant and im overwhelmed with mixed feelings, happy, sad, angry, confused all of which i think may just be jealousy. she has been with with man for 21/2yrs and always said she never wanted kids, and in the last yrs she has changed so much she is now having a baby. i have wanted kids for yrs and my man and i togther on&off for 8 yrs split last yr, and all my hopes/plans for hvaing kids out the window. in the time since my split she only asked me once how i felt or was, and its like i've built up anger cos of it. iwant to support her but at th same time i dont know if i can cope. over the yrs in someways she been a good friend and yet in my times of real need she's rarely supported me or noticed even. i hate feeling this way, but how do i deal with her? i dont want to upet her but ive also had enough of felling like its a one way friendship when its convinent for her, and now theres a baby on the way, what do i do? help please